Wire-drawing block.



E. 1L CARROLL. WIRE DRAWING BLOCK. APPLICATION FILED AP1L24, 1909.

.Patented Nv. 14,1911

2 SHEETS-SHEET 1..

' E. YHf. VVCRR'OLL. WIRE DRAWING BLooK, APPLICATION FILED APR.. 24,1909.

Patented Nov. 14, 1911.

2 SHEETS-SHEET 2.

Be. it known that I, Emmer fran; sfr

'r sf narrar orare 'Eminem n. CARROLL, or wonensrnniinssacnusnrrs,Assenon To MORGAN con# STRUCTION COMPANY, OF WQRCESTER, MASSACHUSETTS;'A CORPORATION MAS#` SACHUSETTS.

wlan-DRAWING BLOCK.

sppucaanneaapriizt,199s. serial no; 492,075.

To all whom it mayamasar/:L:` i

' a citizen of the United States, residing at ".l'orcester, in thecounty of `Worcester and Commonwealth of Massachusetts, have invented anewl andmnsefnleinprovement in Zire-Drawing Blocks, pf which thelfollowing is a specification, accompanied by dra-W'-A ings forming apart ofthe saine-,-1 1n""i.vh1chdrawing block embodying myIpres'ent'inif/ provement. Fig.-2 is a "sidelelevatronsmith Figure `1represents a top view of a wirek portions of the 'bloeklt-showfin'sectional.

v view todiselose the' operating Imechanism.'

Fig. 3 is a side view partly.; in section,

similar tothe view shown in Fi-g. 2, but

with the latclroperating mechanism ina different position from thatshown in Fig. 2.

Similar reference letters and figures refer to similar parts inthedifferent views.

My present invention has for its object to I rcvide means whereb aflexible connection between the rotating block and the wire gripping?rmechanism will be immediately drawn entirely within a shield orprotecting rim upon the top of the block, whenever the strain upon theflexible connection isv relieved, ras by the breakingl ofl the wire,thereby preventingv the centrifugal movement of the tiexible connectioncaused by the rotation of theblocl, and furtherto provide means forlocking the liexible connection in an extended position to acilitate'theapplication of the gripping mechanism to the 'wire to be drawn beforethe rotation of the block isfhcgnn. These objects are .aceomplished' by.the construction and arrangement of parts as hereinafter describedy andset forth in the annexed claims. 1

'Referring to the accompanying drawings l denotes the outer shell orwinding surface of a wire drawing blockhaving a flange at the bottom la.2 is a vertical rotating shaft by which power is applied to the outershell 1 by means of any suitable clutching mecha: .v'nisnn eitherpositive or fractional, said clutching mechanism being operated at willto throw the.w1redraw1ng block lnto and out of connection with thedriving power.

iin thel accompanying drawings l have I shown the block as'driven fromthe shaft 2 through a l trietional clutching .mechanism,i

novii in commonuse, but other 'typesy of clutching mechanisms ,new 1nuse may be employed :for connecting the block with the driving power.Mounted upon thetop of) the block is a swinging lever 3 having voneSpecicetion of Letters Patent. .i Patented Nov: 14, 1911."

endpivoted upon a stud@ and connected atA its opposite end bymeans ofapchainfor other suitable flexiblel connect-ion with a wire'gripping'mechanism 6 of any.lifritrrrn..

form of construction.

rmjeaingnom al@ to Ostheimer 15e,"

curved rim7 formihga s ieldk and providedy with "an opening 8throughwhich the'y "chain lis drawn in tangential relation to f thefperipheriofythe block` during the` operation lof the bloclnas represented byI solidlines inFig. 1. Attachedto the lever between its -free end andthe stud 4is a spiral-wA spring 9 attached atits oppositemend 'to a stud 107N vsaidspring exerting a tension to drawthe lever 3 when the strain fuponthe chain l5 is relieved from its position shown inFig. 1 to theposition shown by broken. lines at 1'l,"'l5"ig. 1; The lover 3 is heldintheposition' shown in Fig. 1 with the `free end in con-tact with theshield 7 at the open# ing 8 and with the chain 5 extended beyondv theshield 7 by means of afalatch 12 operating through-an openingvl 1n theVtop of the block to engage the edge of the'lever 3. The' latch 12 ispivoted at 14 on a bracket 15 at-4 ltached in thepresent instance to aninterior ortion of the wire drawing block, andthe Y atch is held inposition to engage the lever 8 by means of a spiral spring 16 attachedatone end to a` stud- 17 held in an interior portion of the block, andat its oppdsitefend to an arm 18 projectingr from the latch 12. Thelatchis acted upon by the spring 16 but the movement of the latch 12 bythespring 1G is restrained by an arm 19 of the'latclr which is broughtin cont-act with/the under Iside 'of a lug 20projectging 'riphery of thering 21.-: The ring 2l." is held from the. pe-

by'v springs 21,a -upon the upper` ends of lift=I v.-

ing spindles 22 carried bya ring 23 beneath the block which is supportedyupon the. fric-f tion rolls 24 carried in a yoke 25, eapableof beingrocked yin bearings 26 by `the attend.,- ant, so as to raise or depressthe kfrictionrolls'2i. and lift the rings 23 and 21,'orV al-4 low themto Vfall by gravity.

The `latch 12 is raised to hold the lover in contact' with lthe shield 7A'against the flexible connection 5 extended beyond. the shield 7 toprovide for the'attaching of theV .orceiot the spring 9 and also to holdtheI face 29 on a vcentral bl to the shaft 2. The l within said block`as 2.A A rotatable' wire winding block,- agripbetween/,said block andsaid gripping-mechawire to be drawn to the flexible connection 5. lWhenthis is accomplished, the rotation of the block is started and the latch12 islowered, leaving the flexible connection reegto be withdrawnimmediately within the shield 7 by the lever 3 operated by the spring 0in case the strain upon the liexible connection 5 by the wire isreleased for any reason, therebypreventing liability-of injuri7 to theattendantwhile the block is in rotation -by the, swinging.,r `of thefiexihlt connection by centrifugal force caused by the rota'- tion ofthe block. The ring 2l enters a peripheralv groove 2T in a friction ring2S which, in its lowest position frictionally engagesia beveled'sur-lock 30. which is keyed lock 30 is inclosed by a spiral spring 31,. oneend of' which is connected with an oilvreccptacle 32, and the other. end`is connected with the friction ring 528. "licii the friction ring Q Sisraised out of contact with the beveledfsurface 29` of theIdriving'block' 30. the latteris allowed to rotate within the spiralspring 31y which remains at rest. lVheii the friction lring' 2S islowered into contact with the beveled surface 29 of the. driving block 3the ring isl rotated with the block which winds up the spiral spring 3 1upon the: driving block 3() until the spring is rotated by `the block 30and rotaiv motion -impaited to the oil rccepta'cle 32 and connectedouter winding shell 1.

.The specific vfrictional clutching mecha-` msm shown forms no partof mypresent invention, but is described herein to illustrate a method ofma-king'af connection between the latch releasingA mechanism andv theclutchfl operating device in order that the lowering of the latch 12 andthe beginning of the rotation'of the. wire drawing block may besimultaneous.

claim, y y 1. A wire drawing apparatus, comprising' a rotatable-blockupon which the wire is wound, a gripping mechanism for `seizing thewire, a connection between said gripping mechanism and said block, andmeans `for automatically withdrawing said connection soon as thestrainof the wire is removed.

ping mechanism, la 4 connection between said block andf'said..` rippingmechanism, a shield on said block. an anteniatic means forwithdrawinglsaid connection behind vsai@riield as soon as the strainofthe wire upon said" connection is removed. v

3. A wire drawing apparatus, comprising a rotatable block, al grippingmechanism for the wire-to be drawn, a connection-v nism, positive means-forholding said c onnction to resist the strain of the wire, and

means for moving said connection automatically in the opposite directionto the strain of the wire as soon as thestrain of the wire is removed. lf

l. In a wire drawing apparatus, a rotatable block, a gripping mechanismfor the wire to be drawn. a connection between said block and saidgripping mechanism, means for holding the inner end of saidconnectioniii contact with a portion of the periph.- cry' ot said blockto -resist positively the strain of the wire, and means applied to saidvinner end for drawing automaticallyy said connection within saidperiphery as soon as the connection with the wirel to be drawn isbroken.

5. A rotatable block, a gripping mechanism for the wire to be drawn, aconnection between said block and said gripping mechanism, a shieldcarried bv said block, a spring having its tension applied to saidconnection arranged to withdraw said connection entirely7 intotlie'space. betweeny said shield and the center of said block when thestrain ofthe wire is removed from said connection,

whereby thc centrifugal motion of said conf nection is prevented.

6. A rotatable block. a gripping mechanism `for thewire to be drawn. aconnection vbetween said block and said gripping mechanism, a rim uponthe top of said block forming a shield. and automatic means forwithdrawing said connection behind said shield as soon as the strain ofthe wire upon said connect-ion is removed.

' 7. A rotatable block. a gripping mechanism for the wire to be drawn. aconnection between said block and said gripping mechanism, a shieldcarried b v said block. a lever behind said' shield pivoted upon saidblock, with said connection attached to the free end of said lever, anda spring at right angles to said lever arrangedto exerta pulling strainupon said connection.

8. In a wire drawing apparatus of the class described. a rotatable wirewinding block, a gripping mechanism, av connectionbetween the block andgripping mechanism, a lever pivoted on said block havingits free endattached to one' end of said connection, a spring applied to saidleverto exert a pulling strain-on said connection. and a latch for holdingsaid lever Aagainst the tension of said spring.

`9. In a wire drawing lapparatus of the .class described'. a rotatableblock provided with a-clutching mechanism for connecting saidbl'ockwith' the driving power, -a lever pivoted on saidv block, a'lgrippingmechanism, a connection bet-wen thegripping mechanism and the free endof said lever. a

spring applied tosaid lever to exert a pulling strain upon saidconnection, a latch for holding said lever against. the tension of saidspring, and means for releasing said latch and bringing said, cltchingmechanism into operation. l j

10. In a. wire drawing ap aratus ofV the' class described, .a rotatableb ock, clutching 5 mechanism between said block and the driving ower, agripping mechanism for seiz-v lng t e wlre, a connection between'thegr1p..

ping mechanism and the block, means for straining said connection movingmeans,and means for releasmg sald latch land bringing A saidy clutchingmechanism f into operation simultaneously. Dated this 22nd day of April1909.

ELBERT H. CARROLL.l Witnesses: PENELQPE COMBEBBACH. NELLE WHALEN.

